Cardiff, Wales
20 Top Rated Builders in Cardiff for 2026
20 builders in Cardiff ranked by reputation.
Most Recommended Provider in Cardiff
1
Rise Construction Cardiff Ltd
Top Rated ★★★★★ 5.0 (17 reviews) · Cardiff
- High quality workmanship and finish
- Reliable and clear communication
- Professional and organised project management
General building contractingDomestic building servicesCommercial building servicesHome building
2
★★★★★ 5.0 (15 reviews) · Cardiff
- Delivers exceptional quality groundworks and landscaping
- Praised for professionalism and clear communication
- Consistently earns strong customer recommendations
LandscapingGroundworksCivil EngineeringCivil Engineering ConsultancyTransformational Makeover Projects
3
Skyline Rope Access Ltd
Top Rated ★★★★★ 5.0 (8 reviews) · Cardiff
- Expert, knowledgeable trainers
- Welcoming training environment
- Highly recommended courses
Highlevel rope access solutionsDiamond DrillingEnvironmental highlevel servicesHighlevel CleaningHighlevel Inspection
4
Sphinx Constructions Ltd
Top Rated ★★★★★ 4.9 (9 reviews) · Cardiff
- Professional and reliable construction services
- Excellent communication and customer care
- Efficient delivery of diverse building projects
Crafting iconic structuresConstruction servicesBuilding projects in Cardiff
5
Reid Building Limited
Top Rated ★★★★★ 5.0 (7 reviews) · Cardiff
- Professional and reliable building services
- Projects completed on time and within budget
- Highly recommended for quality workmanship
New BuildsHouse ExtensionsGroundworksCommercial Building ProjectsHouse Refurbishment
6
Mark James Building Contractors Ltd
Top Rated ★★★★★ 4.9 (8 reviews) · Cardiff
- High quality workmanship on extensions and renovations
- Reliable project delivery within agreed timescales
- Clear communication and professional project management
House extensionsFull property renovationsKitchen refurbishmentsBathroom refurbishmentsNew builds
7
Vaultstone Limited
Top Rated ★★★★★ 5.0 (5 reviews) · Cardiff
- Expert stonework and craftsmanship
- Professional, helpful and communicative team
- Transparent pricing and project delivery
StoneworkConservationRestorationStone constructionRaw stone sourcing
8
ABN Construction Ltd
Top Rated ★★★★★ 5.0 (5 reviews) · Cardiff
- Professional and reliable builders
- Delivering high standard of work
- Excellent customer service and teamwork
Property RefurbishmentLoft ConversionsHome ExtensionsOperations and MaintenanceEngineering Consultancy
9
Aldrebeconstruction
Top Rated ★★★★★ 4.6 (11 reviews) · Cardiff
- Exceptional workmanship and attention to detail
- Reliable, professional service with clear communication
- Competitive pricing for comprehensive building projects
TilingKitchen fittingPavingCarpentryFlooring
10
Thortech International Ltd
Top Rated ★★★★☆ 4.4 (29 reviews) · Cardiff
- Professional, efficient service and quick project completion.
- High-quality workmanship leading to excellent, beautiful results.
- Friendly, helpful team providing great customer experience.
Antislip coating installationAntiskid surfacing system installationResin bound aggregate installationResin bonded driveway installationRoad surfacing
11
Gallery Loft conversions
Top Rated ★★★★☆ 4.4 (18 reviews) · Cardiff
- Exceptional design and high-quality craftsmanship
- Professional, communicative, and friendly team
- Transformed homes, exceeding customer expectations
Loft conversionsInitial designProject managementDecorationDomestic construction
12
Greenway Build & Solar
Top Rated ★★★★☆ 4.4 (7 reviews) · Cardiff
- Skilled in diverse building and renovation projects
- Trustworthy, professional, and customer-focused team
- Delivers high-quality workmanship and support
RenovationsExtensionsTimber Frame ExtensionsEthical Home RenovationInsurance Works costing planning
13
Morgan Sindall Construction
Top Rated ★★★★☆ 4.2 (5 reviews) · Cardiff
- Highly rated by most customers
- Strong positive client feedback
- Professional project delivery
PlacemakingConstruction project deliveryPrimary school constructionDigital and platform designModern construction methods
14
Atlantic Construction
Top Rated ★★★★☆ 4.2 (5 reviews) · Cardiff
- Reliable and professional building team
- Consistently delivers projects on budget
- High standard of workmanship on refurbishments
New BuildsHome ExtensionsHome RenovationsLoft ConversionsCommercial Construction
15
Camilleri Construction Limited
Top Rated ★★★★☆ 4.1 (14 reviews) · Cardiff
- Professional and communicative team
- High-quality work, excellent finish
- Expertise in insurance repairs
Comprehensive RepairsFoundation RepairsRoof RepairsConstruction ServicesMajor Loss Claims
16
Tremorfa Ltd
Top Rated ★★★★☆ 4.0 (6 reviews) · Cardiff
- Positive customer feedback
- Overall service excellence
- Client satisfaction focus
Mechanical Electrical PlumbingElectronic SecurityFire Detection ProtectionPhysical SecurityService Maintenance including Planned
17
Prokil Cardiff
Top Rated ★★★★☆ 4.0 (36 reviews) · Cardiff
- Professional and efficient service
- High-quality damp and timber work
- Reliable and competitive pricing
Damp proofingTimber treatmentPlasteringDamp proof course installationGeneral building services
18
★★★★☆ 3.7 (6 reviews) · Cardiff
- Successful project outcomes reported
- Good initial service experiences
- Satisfied client base exists
New home buildingPartnership housing solutionsProperty refurbishmentProperty retrofit solutionsLater living communities
19
★★☆☆☆ 2.2 (5 reviews) · Cardiff
- Some customers report satisfactory experiences
- Provides new housing developments
- Operated by a well-established national brand
Building and selling newOffering 3 4Providing sustainable new homesHome customisation and personalisationDevelopment of new residential
20
★★★☆☆ 3.3 (44 reviews) · Cardiff
- Professional and friendly service
- Efficient project delivery
- Consistently high quality workmanship
Reactive Facilities MaintenanceMinor Works RefurbishmentInsurance Restoration Services
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